《半导体分立器件试测原理和方法》由会员分享，可在线阅读，更多相关《半导体分立器件试测原理和方法（49页珍藏版）》请在金锄头文库上搜索。
1、 1 电力半导体器件 的测 试安全及 原理和方法 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with
2、 Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.*2测试安全注意事项 高压测试设备在运行过程中会产生 高温高电压，因此操作不当或者防 护不当，会影响工作人员的安全。 为了测试安全运行、保障操作人员 的人身安全，必须严格遵守安全规 定。Evaluation only.Evalua
3、tion only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.
4、0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.*3 1. 测试工作人员要具有强烈的事业心和 工作责任感，严格执行操作规程。 2. 测试工作人员上岗前必须进行专门培 训，取得上岗证后方能进行独立操作。 3. 测试工作人员进入工作岗位必须穿戴 好防护用品。 4测试人员应注意防止高温烫伤，并做 好高温标识。Evaluation only.Evaluation only. C
5、reated with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created
6、with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.*4 5. 测试加高压前，工作人员必须对各种安全联锁装置 进行检查，以确保它们处于有效的工作状态。 6. 各种系统联锁和安全联锁装置是为了保障测试能安 全可靠运行及工作人员的人身安全的，不得随意改动 或短路。 7测试时严禁进入标有“高压止步”警示的区域。 8. 测试运行时，发现异常，应立刻停机，通知维修人 员进行检查、维修。 9非测试工作人员因工
7、作需要进入测试楼，必须遵守 本安全规程，并服从工作人员的指挥，不得触动设备 上的任何按键和开关，以免发生意外。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only
8、.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.*5概 述电力半导体器件是由整流二极管（ZP），反向阻断三极晶闸管（KP），快速整流二极管（ZK），快速晶闸管（KK），非对称晶闸管（KF），逆导（KN），双向（KS），
9、可关断（GTO/IGCT）等组成。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose
10、.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.*6应 用1. 整流 把交流电变成直流电2. 逆变 把直流电变成交流电3. 变频 把一种频率的交流电变成另一种频率的交流电或把一种固定频率的交流电变成可 以连续变化的交流电。例如交流电机用的变频器。4. 交流开关 接通或切断交流电路5. 直流开
11、关 接通或切断直流电路Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides
12、 for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.*7测试原理及方法通态电压测试原理图Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with As
13、pose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 A
14、spose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.*8电路原理 当K合上，交流220V就加在TB原边，调节TB，变压 器B付边二极管D1，R1向电容C充电，待C充至一定 电压时，触发K1，被试元件，电容C经K1，电感L， 被试元件，分流器FL放电。输出一近似正弦的电流波 形，从FL可测得ITM，从被试元件可测得VTM。调节 TB，使ITM恰好等于被测元件所需电流值，记录下VTM 值，该值就是要测的值。 电流脉宽在1 10 ms范围选择，以使被测器件完全 开通和防止超过器件额定di/dt值。 Evaluation only.Evaluation o
15、nly. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Cr
16、eated with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.*9通态伏安特性（ITM VTM） 差异仅是通态峰值电流至额定通态平均电流值的4、5倍以上； 通常我们给出的是Tjm下的，下面给出25和Tjm二条伏安特性。 我们知道元件的压降由三部分组成：PN结压降 呈现负温度系数，体压降，接触压降呈 现正温度系数 当Tj升高，I较小时，PN结压降起主要作用，高 温压降比常温小； I大时，体压降、接触压降起主导作用，高温压降 比常温大。因此我们可以看到伏安特性随结温而变化，并 且总有一个交点。Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.
